That pyramide approach really looks interesting. I think that was also writing about similar strategy. Maybe you can ask her, how does she measure her intervals. I am going to try that pyramide, too, next week. (i am waiting for my new watch, hope it would support pyramide strategy)
About tracking via the phone, maybe you can just set the alarm sound for all repeatings before you begin the training?
RE: Running for Neo #9 | Cardio-Sprint Pyramid | #runforsteem